Geography questions in high school need to be explained, and high school geography questions are ans

The Indian Ocean is reversed in winter and smooth in summer. After Malacca, to the Pacific Ocean, I don't know the name, it should be the Japanese Warm Current.

Map of ocean currents northeast envelope.

The trade winds blow. Density flow.

1:a Because in January, the monsoon circulation flows counterclockwise, and because of the warm current in Japan, it is a2:c, and there are northeast trade winds and southeast trade winds blowing to the equator on both sides of the equator, which drive the sea water on the north and south sides of the equator to flow from east to west, so the warm currents of the north and south equators are both currents, so it is c

3:a, because the wind currents are the ocean currents formed by the prevailing westerly and trade winds in the northern and southern hemispheres.

4:a, Peruvian fishing grounds are formed by upwelling.

Summary. 2) Combined with the characteristics of the local water cycle, the unfavorable natural conditions for large-scale rice cultivation in Wensu include: Xinjiang is an inland arid area, with insufficient precipitation and large evaporation; The demand for agricultural water is large, and the evapotranspiration of land is large; Groundwater levels are declining and irrigation water consumption is increasing; Rice needs to be soaked for a long time to grow, and it consumes a lot of water, but the soil moisture and fertility are easily lost.

3) The technical measures to ensure the large-scale cultivation of rice in Xinjiang include: selecting rice varieties that are suitable for the local environment; Scientific fertilization and irrigation to reduce the loss of soil moisture and nutrients; Promote mechanized rice cultivation to reduce manpower consumption; We should make use of modern information technology to strengthen the management and monitoring of the rice industry and improve the efficiency of planting.

25 questions will not thank you.

According to the 25 major questions: (1) Compared with the chaotic loss in Jinhua, Zhejiang, the characteristics of rice production in Wensu in Xinjiang are: the rice planting area is small, but the new rice varieties are diversified, including various types of rice varieties in northern and southern Xinjiang.

In addition, the good quality of rice in Wensu County stems from the history of rice planting and modern planting technology that began in the Tang Dynasty.

2) Combined with the characteristics of the local water cycle, the unfavorable natural conditions for large-scale rice cultivation in Wensu include: Xinjiang is an inland arid area, with insufficient precipitation and large steamed celery; The demand for agricultural water is large, and the evapotranspiration of land is large; Groundwater levels are declining and irrigation water consumption is increasing; Rice needs to be soaked for a long time to grow, and it consumes a lot of water, but the soil moisture and fertility are easily lost. (3) Technical measures to ensure large-scale rice planting in Xinjiang include:

selection of rice varieties adapted to the local environment; Scientific fertilization and irrigation to reduce the loss of soil moisture and nutrients; Promote mechanized rice cultivation to reduce manpower consumption; We should make use of modern information technology to strengthen the management and monitoring of the rice industry and improve the efficiency of planting.

1) Choose C, because when the Sun is at its highest position, that is, at 12 o'clock local time (Beijing time on the map), it is due south.

2) Choose B, when the sun is due east, it is 6 o'clock (equinox), and the map is 6:40, that is, the local time is 40 minutes later than Beijing, according to the principle that the more east the time, the earlier the time, the local is in the west of Beijing, so the local longitude is 110°. The answer of the person above is reversed.

3) Choose B, because the sunrise time of the solstice is symmetrical with respect to the sunrise time of the equinox, so x is 8:10.

1. C can be seen according to the time, 2 is the east, 4 is the system, so 3 is the south.

2. D equinox, the sunrise time is 6 o'clock in the world. In other words, 6 o'clock local time is 6:40 Beijing time, which can be calculated as 130°E.

3. From the spring equinox to the summer solstice, the sunrise and sunset times are one and a half hours apart, and obviously, from the autumn equinox to the winter solstice, the sunrise and sunset times are also one and a half hours apart.

First of all, all regions of our country are in the northern hemisphere, the second question is b, because the spring equinox and autumn equinox sun rises at 6:40 on the map, if it is Beijing, it should be 6 o'clock, this place is later than the Beijing sun out of the west of Beijing, that is, the latitude of the place is less than 120 ° east longitude, so the c, d option is excluded, and because the longitude difference of 15 °, the time difference is one hour, and the time difference on the map is less than 1 hour, so the place is smaller than 120 ° east longitude and within the range of 15 °, so the answer is b.

The third question can be judged that xy is the winter solstice, and the known 5:10 and 20:10 are the summer solstice because the sunshine hours in summer are relatively long, and the sunrise time of the summer solstice is 1:earlier than the sunrise time of the spring and autumn equinox

30, so the winter solstice sunrise and sunset times will also lag behind and advance by 1:30 respectively, so it can be concluded that the answer is b.

The first question chooses C, because the sun will rotate along a relatively long circle in summer, and it should be at C at noon, so the south is C.

Question 10 chooses the third one, because the sun rises in the east and sets in the west, for the east, for the west, up the north, down the south, left west, right east. Hence the south.

Question 11 chooses the second one, because on the equinox, the whole world is sunrise at 6 o'clock and sunset at 6 o'clock. When Beijing time is 120 degrees east longitude, the sunrise is 40 minutes later than Beijing time, 40 minutes 4 minutes ° 10 degrees. The east time is early, the west time is late, and the longitude of the place should be 110 degrees east longitude.

Question 12 chooses the second one, because the day length of the winter solstice is equal to the night length of the summer solstice, and the day length of the summer solstice is equal to the night length of the winter solstice. There is a difference of an hour and a half between 5:10 and 6:40, so X is 8:10 and Y is 17:10.